18th Edition Question Breakdown - Q1 - voltage drop

In this video Dave Austin and Gary Gundry breakdown a voltage drop question where the mV/A/M are known.

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[stevethomas]

18 x 15 x 20 ÷ 1000 = 5.4v easy
230v x 5% = 11.5v max permited VD so 5.4v is ok.

[emihaji]

Hi
I have a question on VoltageDrop
It’s on a ring circuit 21*32*106/1000 = 71.23v but in OSG in the final circuits it’s a pass
Please can you Explain thanks

[Sol]

Good videos but plz dont use this annoying marker squeaking noise😬 i have to mute it to see calculations.